Pump.



0. W. JOHNSON.

`PUMPI APPLICATION FILED DBU. 6, 1913.`

.1, 1 21 ,588. Patented Dec'. 15,1914.

6M; M @M UNiTED STATES .PATENT OFFICE.

OSCAR W. JOHNSON, 0F ROCKIFORD, ILLINOIS, ASSIGNOR T0 WARD PUMP COMPANY, OF ROCKFORD, ILLINOIS, A CORPORATION OF ILLINOIS.

PUMP.

Specication off-Letters Patent.

`Patented Dec. 15, 1914.

Application led December 6, 1918. Serial No, 805,076.

Rockford, in the county of -Winnebagoand 5 the, State of Illinois, have invented certaln new and useful. Improvements in Pumps,

of which the following is a'specification.

This invention relates to pumps, more particularly to valve structure thereof.

subeot to much Wear and damage,l for it is evidenced: that after length of use the valvef or valve parts become corroded and as afresult are ineiicient in their'actions, also. that foreign particles or obstructions often-become lodged in the valve members so as to im air. and even stop their actions. It is therefrdre Adesirous ofproviding valve `structure of such a nature that the different valve members may be easily removed from the pump for various needs. Also it follows that it is beneficial to construct the pump itself separate from the valve structure to allow--l greater latitude for removing of the valve parts, andl because the pump can be manufactured muchl easier 'separate as there is not the multitude of small. operations inherent in valve strucgreatadvantage is gained by building into the base of 'thevpump a valve supporting structure, from which pump and base structure the valve supporting structure maybe readily and easilyremoved without disturbing the former members, and from which base the pump can bev removed without disturbing the valve or base members.

The object of' my invention therefore,l is to provide an improved pump. and valve structure in 'which the valve structure may be easily vremoved from', its .operative position in the pump, forothe purposes aboveset ,forth;, and a further object is to provide the said valve casing detachably mounted 45 and to attach a conduit leading thereto,

wherebythe conduit can be removed from the pump structure. without breaking its attaching or union connection with the said valve casing, by the integral removal of the conduit and valve casing.

In i the accompanying drawings.: `Figure The valve structure ofv water' pumps is ture; thusin the construction of gear pumps 1 is a vertical sectional view through a gear-pump embodying my invention, as taken on the line 1-1 of Fig. 2. Fig. 2 is a plan sectional view as taken on the line 2 2 of Fig. 1. Fig3I is a sectional view looking at the under side of the ,base and valve structure, as taken on the line 3f-3 of Fig. 1. Fig. 4 is a plan sectional view l taken on the-line 4 4 of Fig. 1. Fig. 5 is a view similar to Fig. 4 but with the valve member moved to a position about to be withdrawn from the base.

A rectangular elevated' base 6 supports a gear-pump and also forms an inclosure for the'valve structure. The base has an open .side 7, the top 8 formed with a circular opening 9 therethrough, and lugs 10 extend into the base inclosure from opposite sides thereof, reaching into the top openin 9 and spaced from the top 8 of the base. gear- 'pump 11 is mounted on base 6, secured to the top 8 thereof by bolts 12 extending through a' flange on the inlet side of the gear-pumpand through lugs 1Q at the outer yside of the top opening 9. The inlet l13 lof the pumpv opens into the base. inclosure and the casing Vtherefor is rectangular in shape, extending diametrically across top opening 9.- A valve casing 14 of a rectangular shape conforming to the shape of the 9 1s adapted to abutthe under face of the inlet casing, the ends of said valve casing lying intermediate the extensions of lugs l0` and saidinlet casing; and set-screws l 15 arencarried inv lugs 10, their heads down, and arel adapted to engage the ends of valve casing v10 and'when screwed up, to hold said' direction, valve 18 will be raised :by sucinlet 13 but its ends Icurved with opening 9, is located within the base and the opening the valve by the inlet casing 13: Byv operai tion of the rotors of the pump 1n the" proper tion and liquid drawn through pipe i7 andu into the pump chamber, this being a comlf'f open base inclosure, there to be freely accessible or to be removed as the necessity demands. It will lbe .observed that the pump maybe removed without affecting any of the base or valve elements. It will also be noticed that the pipe-section or conduit 17 is in a unionv with the valve casing, and to remove said conduit said union need not be broken, since the `removal may be made by the detaching of the valve casing, whereby both conduit and casing will be integrally removed.

I claim as my invention:

1. The combination with a pump base and a pump mounted thereon, of a valve casing carried by the pump base, a valve carried by the valve casing in communication with the pump, and fastening means for holding the valve casing in said position and to allow the valve casing to. be removed from said position without the removing of said fastening means. i

2. In a pump, a valve casing, a valve carried thereby,` and fastening means for' holding the valve casing in a 'position with its valve in communication with the pump, said fastening means being movable without being moved fromthe pump structure to release said valve casingto allow same to be withdrawn from the pump.

3. In a pump, a valve casing, a valve carried thereby, fastening means for holding the valve casing in operative position and being movable but not from its support, to allow the valve casing to be removed.

4. A piunp having a port opening, a valve casing carrying a valve in communication with said port opening, and fastening means for maintaining the valve casing 1n such w position, said means lincluding ascrew member adapted when'tightened to lock the casing in position and when loosened but ynot removed, to allowithe valve casing to be removed from its said position.

5. In a pump/having a port opening, fixed i lugs spaced'fromfthe face thereof, a valve casing having portions 'located between the said lugsand the port face, and a screw carried by one of'fsaid lu s to hold the valve casing fixed against sai port face.

6. In a pump` aving a port opening, fixed ,lugs spaced/from the face thereof, a valve casinghaving portions located between the means carried by one of said lugs for holdaid lugs and the port face, and fastening ing said valve casing in position, said valve casing when the fastening means arereleased, being removable from betweenthe said lugs and port face.

7 The combination with a casing having two openings therein, of a pump attached thereto and having a port opening communicatable with one of said casing openings, a valve mounted within said casing and having a valve in communication with said port opening whereb the valve is inaccessible from the remaining casing opening, and fastening means for securing the valve casin in said position and to allow when loosene the valve ycasing to be moved toa position accessible through the said remaining casingopening.

8.A The combination with a' casing having 1 an opening therein, of a pump attached to the casing andv having a port opening communicating with said casing' opening, a valve casing carrying a valve in communication with the port opening, and fastening means carried by the casing for holding the valve casingin said position, the valve casing being removable from said position by moving but not removing the fastening means from their carried position. v

9. A pump structure havingI a circular opening communicating with a pump port opening, a. valve casing adapted to be received into said circular opening, and movable fastening means elitending into said circular opening for holding said valve casing in operative position, said valvecasing being removable from its said position by rotary movement thereof to withdraw parts thereof from said fastening means.

10. A pump structure having a circular opening communicating with a pump open'- i ing, a valve 'casing adapted to be received into circular opening, and fastening means within 'close proximityof said circular opening and to be associated with said valve casing to hold same in its operative position, said fastening means including a member movable into engagement with the valve casing, whereby upon disengagement of said member the valve casing'may bemoved rotatably in said circular opening to .be env tirely freed from said fastening means.

11. A pump structure having a port openl ing, fixed lugs spacedv opposite the face portionof said opening, a valve casing having portions thereofFlocated intermediate said llugs and face portion of said opening, and

fastening means carried by said lugs to -holilsaid valve casingiixed in position, the

valve casing when .sald fastening means are loosened, being movable from intermediate said lugs and port face opening.

12.@The combination with a casing, ofV a pump structure fastened thereto and having able but not removable to allow the valve a port opening communicating with the cascasing to be removed.

ing interior, a valve casing located Within In testimony whereof I have hereunto set said casing and having a valve in commumy hand in presence of two subscribing Wit- 5 nication With said port opening, and fastennesses.

ing means for holding said valve casing w fixed in said position, the fastening means OSCAR W JOHNSON' being carried in a fixed position but being Witnesses: movable to engage and hold the valve cas- JOHN F. MCCANNA, Jr., 10 ing in its said positions and also being mov- E. D. E. N. BEHEL. K 

